Question

John was 40 years old in 1995 while his father was 65.In what year was John exactly half his father's age?​

Answer 1

1980.

Explanation:

John was born in 1995 - 40 = 1955.

His father was born in 1995 - 65 = 1930.

Let x be Johns age and his father 2x

1955 + x = 1930 + 2x

1955 - 1930 = 2x - x

x = 25

So the year is 1955 + 25 = 1980..

In that year John was 25 and his father was 50.